Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Kiess, Aaron S.
Committee Member
Sharma, Chander Shekhar
Committee Member
Nannapaneni, Ramakrishna
Date of Degree
12-8-2017
Document Type
Graduate Thesis - Open Access
Major
Agriculture
Degree Name
Master of Science
College
College of Agriculture and Life Sciences
Department
Department of Poultry Science
Abstract
Listeria monocytogenes response to oxidative stress by sublethal sodium hypochlorite was investigated in this study. Continuous exposure of sublethal chlorine influenced biofilm formation and stress adaptation (homologous and heterologous) in L. monocytogenes. The biofilm forming ability of oxidative stress adapted and control cells were investigated on polystyrene surface at 22°C and 37°C. The oxidative stress adapted cells were found to form less biofilm in the presence of chlorine (p < 0.10) when compared to non-treated control cells at both the temperatures. In addition, the biofilm forming ability of L. monocytogenes was reduced significantly at higher sublethal chlorine concentrations (p < 0.10). In conclusion, oxidative stress adapted L. monocytogenes has developed tolerance to chlorine and some of the antibiotics. However, oxidative stress those cells did demonstrate an antibiofilm effect. This demonstrates that oxidative stress reduces L. monocytogenes biofilm formation but can also increase antibiotic resistance.
URI
https://hdl.handle.net/11668/18624
Recommended Citation
Bansal, Mohit, "Listeria Monocytogenes Response to Sublethal Sodium Hypochlorite Induced Oxidative Stress on its Biofilm Forming Ability and Antibiotic Resistance" (2017). Theses and Dissertations. 2960.
https://scholarsjunction.msstate.edu/td/2960
Comments
Listeria monocyotgenes||oxidative stress||chlorine||biofilm